Hi Brandon,
Try this it was shot on the NX70. I had to reduce the file size a bit so it might not be a true representation. Keep in mind AVCHD is a 4:2:0 color space. You’ll want to stay in a progressive format for keying even if you get a 4:2:2 camera. Interlaced video doesn’t work as well as progressive.
https://www.crwphoto.com/H264_movie.mov
Best of luck in your project.
Bryan